Date: Thu, 18 Jan 2024 14:08:09 +0100 From: Matthias Apitz <guru@unixarea.de> To: freebsd-usb@freebsd.org Subject: USB key is 2.0 or 3.0 Message-ID: <ZakiueSm0dPskpSr@pureos>
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Hello, I will move this topic to freebsd-usb@ I bought a new USB 3.0 key with very poor write performan and the question is if the key is really USB 3.0: ----- Forwarded message from Matthias Apitz <guru@unixarea.de> ----- El día jueves, enero 18, 2024 a las 02:43:23 +1100, Ian Smith escribió: > From your first post: > > > Jan 16 17:50:52 c720-1400094 kernel: da0: 40.000MB/s transfers > > Jan 16 17:50:52 c720-1400094 kernel: da0: 120000MB (245760000 512 byte sectors) I checked older /var/log/messages and other external USB disks have 400.000MB/s. So it is not the port of the laptop. I run on my Linux phone a lsusb command which shows: $ lsusb -v -d 058f:6387 Bus 003 Device 002: ID 058f:6387 Alcor Micro Corp. Flash Drive Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 2.10 bDeviceClass 0 bDeviceSubClass 0 bDeviceProtocol 0 bMaxPacketSize0 64 idVendor 0x058f Alcor Micro Corp. idProduct 0x6387 Flash Drive bcdDevice 0.02 iManufacturer 1 Generic iProduct 2 Mass Storage iSerial 3 A430786F ... I interpret 'bcdUSB 2.10' as an indicator of USB 2.10. The key is new and its wrapping says USB 3.0. matthias ----- End forwarded message ----- -- Matthias Apitz, ✉ guru@unixarea.de, http://www.unixarea.de/ +49-176-38902045 Public GnuPG key: http://www.unixarea.de/key.pub I am not at war with Russia. Я не воюю с Россией. Ich bin nicht im Krieg mit Russland.
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